AFE4403: Basic question about input capacitance of I-V amp

Takumi Suzuki1

Part Number: AFE4403

Hi,

I would like to ask you a basic question about the specification of input capacitance.

There describes following specification on the datasheet, page7.

I understand the meaning of max value (1000pF) but do not understand well the meaning of min value.

If the capacitance is under 10pF, is there anything problem happened??

Thank you for your kindness.

Best Regards,

0 Praveen Aroul over 7 years ago

Hello Takumi-san,

Let me check with the team and will get back to you shortly.

0 Praveen Aroul over 7 years ago in reply to Praveen Aroul

Takumi-san,

The min limit was set to 10pF to ensure the TIA amplifier had good phase margin and to avoid the possibility of the amp oscillating.

0 Takumi Suzuki1 over 7 years ago in reply to Praveen Aroul

Hi Praveen-san,

Thank you for your reply!

I understood.

Best Regards,

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